"When Martians suddenly abduct his mom, mischievous Milo rushes to the rescue and discovers why all moms are so special."
Seth Green
as Milo (voice)
Joan Cusack
as Mom (voice)
Dan Fogler
as Gribble (voice)
Breckin Meyer
as Alien (voice)
Elisabeth Harnois
as Ki (voice)
Tom Everett Scott
as Milo's Dad (voice)
Mindy Sterling
as Supervisor (voice)
Julene Renee
as Martian (voice)
Raymond Ochoa
as Martian Hatchling (voice)
Robert Ochoa
Ryan Ochoa
Seth Robert Dusky
as Milo (voice) (as Seth Dusky)
Amber Gainey Meade
as Martian
Dee Bradley Baker
as Two Cats (uncredited)
Adam Jennings
Aaron Rapke
Jacquie Barnbrook
Kevin Cahoon
as Wingnut
Kirsten Severson
Matthew Henerson
Stephen Kearin
Simon Wells
Screenplay
Director
Wendy Wells
Writer
Garrett Warren
Stunt Coordinator
Jason Corgan Brown
Art Department Manager
James Sathre
Lighting Technician
Jimmy Almeida
Animation
Michael Parks
Michael Leung
Lighting Artist
Yuhon Ng
Berkeley Breathed
Book
Benjamin Feder
Costume Design
Scot Boland
Casting
Steven J. Boyd
Producer
Victoria Burrows
Jack Rapke
Doug Chiang
Production Design
Steve Starkey
Robert Presley
Director of Photography
Wayne Wahrman
Editor
Randy Thom
Sound Designer
John Powell
Original Music Composer
Robert Zemeckis
Nia Hansen
Foley Mixer